Washington (IAD) to Cancún (CUN) flight deal in economy from $334

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesIAD

Washington Dulles International Airport

Washington, United States
MexicoCUN

Cancún International Airport

Cancún, Mexico
$452 USD
-26%$334 USD
Verified about 12 hours ago
Good Availability
52% of dates checked are available within 10% of the lowest price

Monday, December 28th, 2026

10 round-trip options

Returning
Sat, Jan 2, 2027•5 Day Trip
$1,576 USD
Google Flights
Returning
Sun, Jan 3, 2027•6 Day Trip
$1,549 USD
Google Flights
Returning
Mon, Jan 4, 2027•7 Day Trip
$803 USD
Google Flights
Returning
Tue, Jan 5, 2027•8 Day Trip
$688 USD
Google Flights
Returning
Wed, Jan 6, 2027•9 Day Trip
$626 USD
Google Flights
Returning
Thu, Jan 7, 2027•10 Day Trip
$586 USD
Google Flights
Returning
Fri, Jan 8, 2027•11 Day Trip
$621 USD
Google Flights
Returning
Sat, Jan 9, 2027•12 Day Trip
$688 USD
Google Flights
Returning
Sun, Jan 10, 2027•13 Day Trip
$631 USD
Google Flights
Returning
Mon, Jan 11, 2027•14 Day Trip
$488 USD
Google Flights